Citation:
Chu Dao-Bao, Wang Feng-Wu, Wei Yi-Jun, Yao Wen-Li, Li Xiao-Hua. Electrocatalytic Activities and Preparation of Nanocrystalline TiO2 -Pt Modified Electrode[J]. Acta Physico-Chimica Sinica,
;2004, 20(02): 182-185.
doi:
10.3866/PKU.WHXB20040215
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The nanocrystalline TiO2-Pt modified titanium (Ti/nano-TiO2-Pt) electrode was prepared by electrosynthesis and direct hydrolysis and electrodeposited Pt on nanocrystalline TiO2 film. SEM was used to characterize the structure of Ti/nano-TiO2-Pt (Pt micro particle 60 nm). Redox behaviors of the Ti/nano-TiO2-Pt electrode, as well as the electrocatalytic activity of the Ti/nano-TiO2-Pt electrode for Mn2+ oxydized to Mn3+ were investigated by cyclic voltammetry and bulk electrolysis. The results indicated that there was high electrocatalytic activity of the Ti/nano-TiO2-Pt electrode for Mn2+ oxydized to Mn3+; The electrocatalytic activity of the Ti/nano-TiO2-Pt electrode was higher than Pt electrode. In preparative electrolysis under heterogeneous optimal conditions, average current efficiency for Mn3+ was 86%.
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